Top Electrical Questions and Answers for Exam Preparation

Explore top Electrical questions and answers to boost your exam preparation and enhance your understanding of key concepts.

Electrical Questions

Q. Positive sequence impedance of a transformer is:

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Q. Two parallel alternators each rated 11 kV 50 MVA and each having a subtransient reactance of 15% are connected to a bus bar. What is the fault level for a fault on one of the feeders near the bus bar ?

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Q. A schedule speed of 45 km/hr is required between two stops 1.5 km apart. If the stop is 20 s duration, what is the actual time of run for the train ?

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Q. What is the supply voltage of electric traction in Kerala ?

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Q. What is the decimal number for 10101?

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Q. Illumination of a surface is inversely proportional to

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Q. Zero voltage regulation in a transformer occurs at :

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Q. A 230/115V transformer has its LV side resistance of 0.06p.u. The resistance referred to HV side is :

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Q. The effect of addition of zero to the open loop transfer function is

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Q. Polar plot of sinusoidal transfer function is a plot of:

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